[Python-ideas] Fwd: Consider allowing the use of abstractmethod without metaclasses

[Ivan Levkivskyi]

To be honest, I am not very happy with addition of a new special class.
Imagine that the PEP 544 will be accepted (and I hope so).
Then we would have, abstract classes, abstract base classes, and protocols.
I think users will be overwhelmed by having
three similar concepts instead of one.

I think we still could squeeze a lot of performance from good old ABCs by
optimizing various parts and reimplementing some parts in C.
In fact, my desire to optimize and rewrite ABCMeta in C is partially due to
reluctance to add yet another concept of "abstractness".

--
Ivan
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